[llvm-tapi-diff] rename tests for clarity, NFC

diff --git a/llvm/test/tools/llvm-tapi-diff/tapi-diff-incorrect-format.test b/llvm/test/tools/llvm-tapi-diff/incorrect-format.test
similarity index 100%
rename from llvm/test/tools/llvm-tapi-diff/tapi-diff-incorrect-format.test
rename to llvm/test/tools/llvm-tapi-diff/incorrect-format.test

diff --git a/llvm/test/tools/llvm-tapi-diff/tapi-diff-tbd-has-single-inlineA.test b/llvm/test/tools/llvm-tapi-diff/left-single-inline.test
similarity index 100%
rename from llvm/test/tools/llvm-tapi-diff/tapi-diff-tbd-has-single-inlineA.test
rename to llvm/test/tools/llvm-tapi-diff/left-single-inline.test

diff --git a/llvm/test/tools/llvm-tapi-diff/tapi-diff-matching-tbd.test b/llvm/test/tools/llvm-tapi-diff/matching-tbd.txt
similarity index 100%
rename from llvm/test/tools/llvm-tapi-diff/tapi-diff-matching-tbd.test
rename to llvm/test/tools/llvm-tapi-diff/matching-tbd.txt

diff --git a/llvm/test/tools/llvm-tapi-diff/tapi-diff-mismatched-number-of-inlines.test b/llvm/test/tools/llvm-tapi-diff/mismatched-number-of-inlines.test
similarity index 100%
rename from llvm/test/tools/llvm-tapi-diff/tapi-diff-mismatched-number-of-inlines.test
rename to llvm/test/tools/llvm-tapi-diff/mismatched-number-of-inlines.test

diff --git a/llvm/test/tools/llvm-tapi-diff/tapi-diff-misspelled-tbd.test b/llvm/test/tools/llvm-tapi-diff/misspelled-tbd.test
similarity index 100%
rename from llvm/test/tools/llvm-tapi-diff/tapi-diff-misspelled-tbd.test
rename to llvm/test/tools/llvm-tapi-diff/misspelled-tbd.test

diff --git a/llvm/test/tools/llvm-tapi-diff/tapi-diff-tbd-has-multiple-inlines.test b/llvm/test/tools/llvm-tapi-diff/multiple-inlines.test
similarity index 100%
rename from llvm/test/tools/llvm-tapi-diff/tapi-diff-tbd-has-multiple-inlines.test
rename to llvm/test/tools/llvm-tapi-diff/multiple-inlines.test

diff --git a/llvm/test/tools/llvm-tapi-diff/tapi-diff-no-inlines.test b/llvm/test/tools/llvm-tapi-diff/no-inlines.test
similarity index 100%
rename from llvm/test/tools/llvm-tapi-diff/tapi-diff-no-inlines.test
rename to llvm/test/tools/llvm-tapi-diff/no-inlines.test

diff --git a/llvm/test/tools/llvm-tapi-diff/tapi-diff-tbd-has-single-inlineB.test b/llvm/test/tools/llvm-tapi-diff/right-single-inlines.test
similarity index 100%
rename from llvm/test/tools/llvm-tapi-diff/tapi-diff-tbd-has-single-inlineB.test
rename to llvm/test/tools/llvm-tapi-diff/right-single-inlines.test

diff --git a/llvm/test/tools/llvm-tapi-diff/tapi-diff-same-number-of-inlines.test b/llvm/test/tools/llvm-tapi-diff/same-num-inlines.test
similarity index 100%
rename from llvm/test/tools/llvm-tapi-diff/tapi-diff-same-number-of-inlines.test
rename to llvm/test/tools/llvm-tapi-diff/same-num-inlines.test