ScriptValidation: Make break/next a warning until Zeek 6.1

The ja3 package uses next instead of return and triggers the new
errors with Zeek 5.2. That seems somewhat bad.

In case we want to do a 5.2.1 that makes this a warning, this
would be change to do so.

src/ScriptValidation.cc

@@ -22,15 +22,17 @@ public:
 		if ( stmt->Tag() == STMT_BREAK && ! BreakStmtIsValid() )
 			{
 			zeek::reporter->PushLocation(stmt->GetLocationInfo());
-			zeek::reporter->Error("break statement used outside of for, while or "
-			                      "switch statement and not within a hook");
+			zeek::reporter->Warning("break statement used outside of for, while or "
+			                        "switch statement and not within a hook. "
+			                        "With v6.1 this will become an error.");
 			zeek::reporter->PopLocation();
 			}
 
 		if ( stmt->Tag() == STMT_NEXT && ! NextStmtIsValid() )
 			{
 			zeek::reporter->PushLocation(stmt->GetLocationInfo());
-			zeek::reporter->Error("next statement used outside of for or while statement");
+			zeek::reporter->Warning("next statement used outside of for or while statement. "
+			                        "With v6.1 this will become an error.");
 			zeek::reporter->PopLocation();
 			}
 

testing/btest/Baseline/language.next-break-context-errors-2/.stderr

@@ -1,2 +1,2 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
-error in <...>/next-break-context-errors.zeek, line 3: break statement used outside of for, while or switch statement and not within a hook
+warning in <...>/next-break-context-errors.zeek, line 3: break statement used outside of for, while or switch statement and not within a hook. With v6.1 this will become an error.

testing/btest/Baseline/language.next-break-context-errors-3/.stderr

@@ -1,2 +1,2 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
-error in <...>/next-break-context-errors.zeek, line 3: next statement used outside of for or while statement
+warning in <...>/next-break-context-errors.zeek, line 3: next statement used outside of for or while statement. With v6.1 this will become an error.

testing/btest/Baseline/language.next-break-context-errors-4/.stderr

@@ -1,2 +1,2 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
-error in <...>/next-break-context-errors.zeek, line 3: break statement used outside of for, while or switch statement and not within a hook
+warning in <...>/next-break-context-errors.zeek, line 3: break statement used outside of for, while or switch statement and not within a hook. With v6.1 this will become an error.

testing/btest/Baseline/language.next-break-context-errors-5/.stderr

@@ -1,2 +1,2 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
-error in <...>/next-break-context-errors.zeek, line 4: break statement used outside of for, while or switch statement and not within a hook
+warning in <...>/next-break-context-errors.zeek, line 4: break statement used outside of for, while or switch statement and not within a hook. With v6.1 this will become an error.

testing/btest/Baseline/language.next-break-context-errors-6/.stderr

@@ -1,2 +1,2 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
-error in <...>/next-break-context-errors.zeek, line 7: next statement used outside of for or while statement
+warning in <...>/next-break-context-errors.zeek, line 7: next statement used outside of for or while statement. With v6.1 this will become an error.

testing/btest/Baseline/language.next-break-context-errors-7/.stderr

@@ -1,2 +1,2 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
-error in <...>/next-break-context-errors.zeek, line 5: next statement used outside of for or while statement
+warning in <...>/next-break-context-errors.zeek, line 5: next statement used outside of for or while statement. With v6.1 this will become an error.

testing/btest/Baseline/language.next-break-context-errors-8/.stderr

@@ -1,2 +1,2 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
-error in <...>/next-break-context-errors.zeek, line 6: next statement used outside of for or while statement
+warning in <...>/next-break-context-errors.zeek, line 6: next statement used outside of for or while statement. With v6.1 this will become an error.

testing/btest/Baseline/language.next-break-context-errors-9/.stderr

@@ -1,4 +1,4 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
-error in <...>/next-break-context-errors.zeek, line 6: next statement used outside of for or while statement
-error in <...>/next-break-context-errors.zeek, line 11: break statement used outside of for, while or switch statement and not within a hook
-error in <...>/next-break-context-errors.zeek, line 16: next statement used outside of for or while statement
+warning in <...>/next-break-context-errors.zeek, line 6: next statement used outside of for or while statement. With v6.1 this will become an error.
+warning in <...>/next-break-context-errors.zeek, line 11: break statement used outside of for, while or switch statement and not within a hook. With v6.1 this will become an error.
+warning in <...>/next-break-context-errors.zeek, line 16: next statement used outside of for or while statement. With v6.1 this will become an error.

testing/btest/Baseline/language.next-break-context-errors/.stderr

@@ -1,2 +1,2 @@
 ### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
-error in <...>/next-break-context-errors.zeek, line 7: next statement used outside of for or while statement
+warning in <...>/next-break-context-errors.zeek, line 7: next statement used outside of for or while statement. With v6.1 this will become an error.

testing/btest/language/next-break-context-errors.zeek

@@ -1,6 +1,6 @@
 # @TEST-DOC: Check break and next usage within for, while, switch and hooks.
 
-# @TEST-EXEC-FAIL: zeek -b %INPUT
+# @TEST-EXEC: zeek -b %INPUT
 # @TEST-EXEC: TEST_DIFF_CANONIFIER=$SCRIPTS/diff-remove-abspath btest-diff .stderr
 function f()
 	{