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1a2 3; RUN: %ProtectFileCheckOutput not FileCheck -input-file %s %s 2>&1 | \4; RUN: FileCheck -check-prefix CHECK-ERROR -DDIR=%S \5; RUN: --match-full-lines --strict-whitespace %s6 7; CHECK: a[[]]8; CHECK-ERROR:[[DIR]]{{/|\\}}empty-variable-name.txt:7:13: error: empty variable name9; CHECK-ERROR-NEXT:; CHECK: a{{\[\[\]\]}}10; CHECK-ERROR-NEXT: ^11 12b13 14; RUN: %ProtectFileCheckOutput not FileCheck -input-file %s -check-prefix CHECK-PSEUDO %s 2>&1 | \15; RUN: FileCheck -check-prefix CHECK-ERROR-PSEUDO -DDIR=%S \16; RUN: --match-full-lines --strict-whitespace %s17 18; CHECK-PSEUDO: b[[@]]19; CHECK-ERROR-PSEUDO:[[DIR]]{{/|\\}}empty-variable-name.txt:18:21: error: empty pseudo variable name20; CHECK-ERROR-PSEUDO-NEXT:; CHECK-PSEUDO: b{{\[\[@\]\]}}21; CHECK-ERROR-PSEUDO-NEXT: ^22 23c24 25; RUN: %ProtectFileCheckOutput not FileCheck -input-file %s -check-prefix CHECK-GLOBAL %s 2>&1 | \26; RUN: FileCheck -check-prefix CHECK-ERROR-GLOBAL -DDIR=%S \27; RUN: --match-full-lines --strict-whitespace %s28 29; CHECK-GLOBAL: c[[$]]30; CHECK-ERROR-GLOBAL:[[DIR]]{{/|\\}}empty-variable-name.txt:29:21: error: empty global variable name31; CHECK-ERROR-GLOBAL-NEXT:; CHECK-GLOBAL: c{{\[\[\$\]\]}}32; CHECK-ERROR-GLOBAL-NEXT: ^33