[clang-tools-extra] [clangd] Do not offer extraction to variable for decl init expression (PR #69477)

[kadir çetinkaya via cfe-commits]

================
@@ -504,68 +502,6 @@ TEST_F(ExtractVariableTest, Test) {
         int main() {
           auto placeholder = []() { return 42; }(); return  placeholder ;
         })cpp"},
-      {R"cpp(
-        template <typename ...Ts>
-        void foo(Ts ...args) {
-          auto x = [[ [&args...]() {} ]];
-        }
-      )cpp",
-       R"cpp(
-        template <typename ...Ts>
-        void foo(Ts ...args) {
-          auto placeholder = [&args...]() {}; auto x =  placeholder ;
-        }
-      )cpp"},
-      {R"cpp(
----------------
kadircet wrote:

for the following two can you change them to:
```
...
auto f = [[ lambda_expr ]]();
...
```

that way they should turn into
```
...
placeholder = lambda_expr;
auto f = placeholder();
...
```

https://github.com/llvm/llvm-project/pull/69477