clang-format: Don't indent 'signals' as access specifier if it isn't one

Before:
  {
  signals.set(0);
  }

After:
  {
    signals.set(0);
  }

llvm-svn: 236630

clang/lib/Format/UnwrappedLineFormatter.h

@@ -105,7 +105,9 @@ private:
         Style.Language == FormatStyle::LK_JavaScript)
       return 0;
     if (RootToken.isAccessSpecifier(false) ||
-        RootToken.isObjCAccessSpecifier() || RootToken.is(Keywords.kw_signals))
+        RootToken.isObjCAccessSpecifier() ||
+        (RootToken.is(Keywords.kw_signals) && RootToken.Next &&
+         RootToken.Next->is(tok::colon)))
       return Style.AccessModifierOffset;
     return 0;
   }

clang/unittests/Format/FormatTest.cpp

@@ -1939,6 +1939,9 @@ TEST_F(FormatTest, UnderstandsAccessSpecifiers) {
   // Don't interpret 'signals' the wrong way.
   verifyFormat("signals.set();");
   verifyFormat("for (Signals signals : f()) {\n}");
+  verifyFormat("{\n"
+               "  signals.set(); // This needs indentation.\n"
+               "}");
 }
 
 TEST_F(FormatTest, SeparatesLogicalBlocks) {