[WebAssembly] Remove friend18.C from list of known gcc torture test failures. NFC.

sbc100 · sbc100 · commit 2147365484f1 · 2019-05-10T01:45:34.000Z
Differential Revision: https://reviews.llvm.org/D61775 llvm-svn: 360401
diff --git a/llvm/lib/Target/WebAssembly/known_gcc_test_failures.txt b/llvm/lib/Target/WebAssembly/known_gcc_test_failures.txt
@@ -109,7 +109,6 @@ thread_local5g.C
 spec5.C
 addr1.C
 ef_test.C
-friend18.C
 member2.C
 new39.C
 new40.C
