[BUG] `"//"` `"/*"` inside string literal treated as real comment and doesn't compile

[realgdman]

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Describe the bug `"//" "/*" symbols inside string literals treated as comment start and break compilation, like shadowing closing } For // it happens inside { block }

To Reproduce https://cpp2.godbolt.org/z/5KEPj196s Uncomment lines marked as error

main: () = {
	std::cout << "//123"; //123, ok
	//{ std::cout << "//456"; } //error

	:()->_ = "//Ok";
	//:()->_ = { return "//Error"; }

	a:="*/ ok";
	{ c:="*/ ok"; }
	//b:="/* error even without {} block";
}
//error: (x) = { return "//"; }

Version latest Command lines cppfront/cppfront $1.cpp2 -p clang++-15 -Icppfront/include $1.cpp -std=c++20 -o $1

Expected result Success compilation and usage of such string literals Actual result/error call.cpp2(32,0): error: end of file reached with 1 missing } to match earlier { on line 1

Additional context I've encountered this inside lambda, when expanding it and changing short syntax to code block. Then discovered "/*" have same issue even without block.

"*/" doesn't seems to have problem.

[hsutter]

Reopening as a reminder to handle the raw string literal case too...

[JohelEGP]

Of course, '\\\n' is not a valid string literal. ~~Does this deserve a different issue? See https://cpp2.godbolt.org/z/e7eWbjPjv:~~

  _ = $R"(((_ = s.split('\\\n'), 0))$)";

main.cpp2...
main.cpp2(5,35): error: character literal '\\\' is missing its closing '
main.cpp2(5,40): error: character literal '),' is missing its closing '
main.cpp2(5,26): error: unexpected text - expression-list is not terminated by ) (at '=')