[clang] [Clang] Eagerly instantiate used constexpr function upon definition. (PR #73463)

[Richard Smith via cfe-commits]

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@@ -112,6 +112,9 @@ template <typename T>
 constexpr int f(T t) { // expected-note {{'f<int>' defined here}}
     return id(t); // expected-note {{'f<int>' is an immediate function because its body contains a call to a consteval function 'id' and that call is not a constant expression}}
 }
+
+
+
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zygoloid wrote:

Revert these added blank lines.

https://github.com/llvm/llvm-project/pull/73463