[lldb/Reproducer] Mark some driver tests as unsupported for lldb-repro

These test are checking for diagnostics printed by the driver. During
replay we only replay the SB API calls made by the driver, so it's
expected that these messages aren't displayed.

lldb/test/Shell/Driver/LocalLLDBInit.test

@@ -1,4 +1,6 @@
 # REQUIRES: python
+# UNSUPPORTED: lldb-repro
+#
 # RUN: mkdir -p %t.root
 # RUN: mkdir -p %t.home
 # RUN: cp %S/Inputs/.lldbinit %t.root

lldb/test/Shell/Driver/TestCore.test

@@ -1,2 +1,4 @@
+# UNSUPPORTED: lldb-repro
+#
 # RUN: not %lldb -c /bogus/path 2>&1 | FileCheck %s
 # CHECK: error: file specified in --core (-c) option doesn't exist

lldb/test/Shell/Driver/TestFile.test

@@ -1,2 +1,4 @@
+# UNSUPPORTED: lldb-repro
+#
 # RUN: not %lldb -f /bogus/path 2>&1 | FileCheck %s
 # CHECK: error: file specified in --file (-f) option doesn't exist

lldb/test/Shell/Driver/TestRepl.test

@@ -1,3 +1,5 @@
+# UNSUPPORTED: lldb-repro
+#
 # RUN: echo ':quit' | %lldb -x --repl -O 'expr 42' -S %S/Inputs/Print2.in -o 'expr 999999' -s %s 2>&1 | FileCheck %s
 # CHECK: {{w}}arning: commands specified to run after file load (via -o or -s) are ignored in REPL mode
 # CHECK: (int) $0 = 42