Rollup merge of #101616 - TimNN:relax-msan, r=lqd

Adapt test for msan message change

Similar to rust-lang/rust#100445, this adapts the new test added by rust-lang/rust#99207 to some relatively recent [LLVM changes](057cabd997) that removed the function name from msan messages.

Found via our experimental rust + llvm @ HEAD bot:
https://buildkite.com/llvm-project/rust-llvm-integrate-prototype/builds/13347#018321b2-0cc3-4c91-b4db-774477e8b074

`@rustbot` label +llvm-main
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Matthias Krüger 2022-09-10 07:09:21 +02:00 committed by GitHub
commit 27afe55860
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@ -10,7 +10,7 @@
// run-fail
// error-pattern: MemorySanitizer: use-of-uninitialized-value
// error-pattern: Uninitialized value was created by an allocation
// error-pattern: in the stack frame of function 'random'
// error-pattern: in the stack frame
//
// This test case intentionally limits the usage of the std,
// since it will be linked with an uninstrumented version of it.