Fix runtest/test_suite.shtest test

Commit 81f67a8 added a new code size
metric to the CSV report template but did not update the corresponding
CHECK-CSV FileCheck directives, leading the test to fail. This commit
fixes the problem.

Reviewed By: tnfchris

Differential Revision: https://reviews.llvm.org/D112182

Author: Thomas Preud'homme

tests/runtest/Inputs/test-suite-cmake/fake-results.json

@@ -7,6 +7,7 @@
             "metrics": {
                 "compile_time": 1.3,
                 "exec_time": 1.4,
+                "size..text": 42.0,
                 "score": 1.5,
                 "hash": "xyz",
                 "unknown": "unknown"

tests/runtest/test_suite.shtest

@@ -40,8 +40,8 @@
 # CHECK-XML:     </testcase>
 # CHECK-XML: </testsuite>
 
-# CHECK-CSV: Program;CC;CC_Time;CC_Hash;Exec;Exec_Time;Score
-# CHECK-CSV-NEXT: foo//foo;pass;1.3;xyz;pass;1.4;1.5
+# CHECK-CSV: Program;CC;CC_Time;Code_Size;CC_Hash;Exec;Exec_Time;Score
+# CHECK-CSV-NEXT: foo//foo;pass;1.3;42.0;xyz;pass;1.4;1.5
 
 # CHECK-CHECKFORMAT: Import succeeded.
 # CHECK-CHECKFORMAT: Added Machines: 1