Fix regression in string literal alignment.

Now correctly indents (again):
a = a + "a"
        "a"
        "a";

llvm-svn: 175630

clang/lib/Format/Format.cpp

@@ -692,7 +692,7 @@ private:
       State.Stack.pop_back();
     }
 
-    if (Current.is(tok::string_literal) && State.StartOfStringLiteral == 0) {
+    if (Current.is(tok::string_literal)) {
       State.StartOfStringLiteral = State.Column;
     } else if (Current.isNot(tok::comment)) {
       State.StartOfStringLiteral = 0;

clang/unittests/Format/FormatTest.cpp

@@ -1452,6 +1452,9 @@ TEST_F(FormatTest, AlignsStringLiterals) {
              "\"aaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaa "
              "aaaaaaaaaaaaaaaaaaaaa\" "
              "\"aaaaaaaaaaaaaaaa\";"));
+  verifyFormat("a = a + \"a\"\n"
+               "        \"a\"\n"
+               "        \"a\";");
 }
 
 TEST_F(FormatTest, AlignsPipes) {