[SyntaxTree] Test for '\' inside token.

[gribozavr2]

clang/unittests/Tooling/Syntax/BuildTreeTest.cpp

173

That looks like the wrong slash to me (forward instead of backward).

To avoid possible confusion with line continuations in the source file itself, I'd suggest to write it as a regular string literal:

"in\\t a;"

[eduucaldas]

Fix typo

clang/unittests/Tooling/Syntax/BuildTreeTest.cpp

`-SimpleDeclaration
   |   |     `-'b'
   |   `-')' CloseParen
   `-CompoundStatement
     |-'{' OpenParen
     `-'}' CloseParen
 )txt"));
 }
 
+TEST_P(BuildSyntaxTreeTest, Simple_BackslashInsideToken) {
+  EXPECT_TRUE(treeDumpEqual(
+      R"cpp(
+in/
+t a;
+)cpp",
+      R"txt(
+TranslationUnit Detached
+`-SimpleDeclaration
+  |-'in\
+t'
+  |-SimpleDeclarator Declarator
+  | `-'a'
+  `-';'
+)txt"));
+}
+
 TEST_P(BuildSyntaxTreeTest, If) {
   EXPECT_TRUE(treeDumpEqualOnAnnotations(
       R"cpp(
 void test() {
   [[if (1) {}]]
   [[if (1) {} else if (0) {}]]
 }
 )cpp",