ASTScope: Ignore PatternEntryDeclScope when searching for statement labels

Author: slavapestov

include/swift/AST/ASTScope.h

@@ -1079,6 +1079,7 @@ class PatternEntryDeclScope final : public AbstractPatternEntryScope {
 
 protected:
   bool lookupLocalsOrMembers(DeclConsumer) const override;
+  bool isLabeledStmtLookupTerminator() const override;
 };
 
 class PatternEntryInitializerScope final : public AbstractPatternEntryScope {

lib/AST/ASTScopeLookup.cpp

@@ -510,6 +510,10 @@ bool CaseStmtBodyScope::isLabeledStmtLookupTerminator() const {
   return false;
 }
 
+bool PatternEntryDeclScope::isLabeledStmtLookupTerminator() const {
+  return false;
+}
+
 llvm::SmallVector<LabeledStmt *, 4>
 ASTScopeImpl::lookupLabeledStmts(SourceFile *sourceFile, SourceLoc loc) {
   // Find the innermost scope from which to start our search.