Fix test compatibility with 141 branch

(cherry picked from commit 387eb60)

Author: zolotov

src/com/goide/inspections/GoDeferInLoop.java

@@ -34,7 +34,7 @@ protected GoVisitor buildGoVisitor(@NotNull final ProblemsHolder holder, @NotNul
       @Override
       public void visitDeferStatement(@NotNull GoDeferStatement o) {
         if (PsiTreeUtil.getParentOfType(o, GoForStatement.class, GoFunctionLit.class) instanceof GoForStatement) {
-          holder.registerProblem(o.getDefer(), "Possible resource leak, \"defer\" is called in a for loop.", 
+          holder.registerProblem(o.getDefer(), "Possible resource leak, 'defer' is called in a for loop.", 
                                  ProblemHighlightType.GENERIC_ERROR_OR_WARNING);
         }
       }

testData/highlighting/deferInLoop.go

@@ -4,7 +4,7 @@ func noop() {}
 
 func (a int) meth() {
 	for {
-		<weak_warning descr="Possible resource leak, \"defer\" is called in a for loop.">defer</weak_warning> noop()
+		<weak_warning descr="Possible resource leak, 'defer' is called in a for loop.">defer</weak_warning> noop()
 	}
 }
 
@@ -21,13 +21,13 @@ func _() {
 
 	for {
 		switch 1 {
-		case 2: <weak_warning descr="Possible resource leak, \"defer\" is called in a for loop.">defer</weak_warning> noop();
+		case 2: <weak_warning descr="Possible resource leak, 'defer' is called in a for loop.">defer</weak_warning> noop();
 		}
 	}
 
 	defer noop();
 	for {
-		<weak_warning descr="Possible resource leak, \"defer\" is called in a for loop.">defer</weak_warning> noop()
+		<weak_warning descr="Possible resource leak, 'defer' is called in a for loop.">defer</weak_warning> noop()
 	}
 }