LLVMConstStringInContext2 supported in LLVM 19

Author: erer1243

compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp

@@ -2079,8 +2079,9 @@ extern "C" bool LLVMRustLLVMHasZstdCompressionForDebugSymbols() {
 // See https://github.com/rust-lang/rust/issues/121868
 // See https://llvm.org/doxygen/group__LLVMCCoreValueConstantComposite.html
 
-// FIXME Change version check once patch is accepted into LLVM
-#if LLVM_VERSION_LT(999, 0)
+// FIXME: Remove when RUST's minimum supported LLVM version reaches 19.
+// https://github.com/llvm/llvm-project/commit/e1405e4f71c899420ebf8262d5e9745598419df8
+#if LLVM_VERSION_LT(19, 0)
 extern "C" LLVMValueRef LLVMConstStringInContext2(LLVMContextRef C,
                                                   const char *Str,
                                                   size_t Length,