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092508a079
This patch adds more tests of C2x attributes, where I found cases that were handled correctly by my patches but missing from the original tests. Tests are added for -std=c11 -pedantic handling of C2x attribute syntax and corresponding -Wc11-c2x-compat handling; for struct [[deprecated]]; and for the [[__fallthrough__]] spelling of [[fallthrough]] in the case of valid fallthrough attributes. Tested for x86_64-pc-linux-gnu. * gcc.dg/c11-attr-syntax-1.c, gcc.dg/c11-attr-syntax-2.c, gcc.dg/c11-attr-syntax-3.c, gcc.dg/c2x-attr-syntax-4.c: New tests. * gcc.dg/c2x-attr-deprecated-1.c: Also test struct [[deprecated]]. * gcc.dg/c2x-attr-fallthrough-1.c: Also test [[__fallthrough__]]. From-SVN: r278418
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