[lldb][test] Remove compiler version check and use regex (llvm#123393)

The test checks specific compiler version to determine the output.
However, the compiler version string is always set to 15.0.0 for our
local build. Remove this check and use regex match instead.

## Test Plan
```
./bin/llvm-lit -sva /home/wanyi/llvm-sand/external/llvm-project/lldb/test/API/commands/expression/import-std-module/vector-of-vectors/TestVectorOfVectorsFromStdModule.py
...
Skipping the following test categories: ['dsym', 'gmodules', 'debugserver', 'objc']

--
Command Output (stderr):
--
UNSUPPORTED: LLDB (/home/wanyi/llvm-sand/build/Release+Distribution/fbcode-x86_64/toolchain/bin/clang-x86_64) :: test_dsym (TestVectorOfVectorsFromStdModule.TestVectorOfVectors) (test case does not fall in any category of interest for this run) 
PASS: LLDB (/home/wanyi/llvm-sand/build/Release+Distribution/fbcode-x86_64/toolchain/bin/clang-x86_64) :: test_dwarf (TestVectorOfVectorsFromStdModule.TestVectorOfVectors)
PASS: LLDB (/home/wanyi/llvm-sand/build/Release+Distribution/fbcode-x86_64/toolchain/bin/clang-x86_64) :: test_dwo (TestVectorOfVectorsFromStdModule.TestVectorOfVectors)
----------------------------------------------------------------------
Ran 3 tests in 4.636s

OK (skipped=1)

--

********************

Testing Time: 4.97s

Total Discovered Tests: 1
  Passed: 1 (100.00%)
```

Author: kusmour

lldb/test/API/commands/expression/import-std-module/vector-dbg-info-content/TestDbgInfoContentVectorFromStdModule.py

@@ -23,13 +23,6 @@ def test(self):
 
         self.runCmd("settings set target.import-std-module true")
 
-        if self.expectedCompiler(["clang"]) and self.expectedCompilerVersion(
-            [">", "16.0"]
-        ):
-            vector_type = "std::vector<Foo>"
-        else:
-            vector_type = "std::vector<Foo, std::allocator<Foo> >"
-
         size_type = "size_type"
         value_type = "value_type"
         iterator = "iterator"
@@ -41,13 +34,14 @@ def test(self):
             ValueCheck(name="current"),
         ]
 
-        self.expect_expr(
-            "a",
-            result_type=vector_type,
-            result_children=[
-                ValueCheck(children=[ValueCheck(value="3")]),
-                ValueCheck(children=[ValueCheck(value="1")]),
-                ValueCheck(children=[ValueCheck(value="2")]),
+        self.expect(
+            "expr a",
+            patterns=[
+                """\(std::vector<Foo(, std::allocator<Foo> )*>\) \$0 = size=3 \{
+  \[0\] = \(a = 3\)
+  \[1\] = \(a = 1\)
+  \[2\] = \(a = 2\)
+\}"""
             ],
         )
 

lldb/test/API/commands/expression/import-std-module/vector-of-vectors/TestVectorOfVectorsFromStdModule.py

@@ -17,42 +17,26 @@ def test(self):
             self, "// Set break point at this line.", lldb.SBFileSpec("main.cpp")
         )
 
-        if self.expectedCompiler(["clang"]) and self.expectedCompilerVersion(
-            [">", "16.0"]
-        ):
-            vector_type = "std::vector<int>"
-            vector_of_vector_type = "std::vector<std::vector<int> >"
-        else:
-            vector_type = "std::vector<int>"
-            vector_of_vector_type = (
-                "std::vector<std::vector<int>, std::allocator<std::vector<int> > >"
-            )
-
         size_type = "size_type"
         value_type = "value_type"
 
         self.runCmd("settings set target.import-std-module true")
 
-        self.expect_expr(
-            "a",
-            result_type=vector_of_vector_type,
-            result_children=[
-                ValueCheck(
-                    type=vector_type,
-                    children=[
-                        ValueCheck(value="1"),
-                        ValueCheck(value="2"),
-                        ValueCheck(value="3"),
-                    ],
-                ),
-                ValueCheck(
-                    type=vector_type,
-                    children=[
-                        ValueCheck(value="3"),
-                        ValueCheck(value="2"),
-                        ValueCheck(value="1"),
-                    ],
-                ),
+        self.expect(
+            "expr a",
+            patterns=[
+                """\(std::vector<std::vector<int>(, std::allocator<std::vector<int> )* >\) \$0 = size=2 \{
+  \[0\] = size=3 \{
+    \[0\] = 1
+    \[1\] = 2
+    \[2\] = 3
+  \}
+  \[1\] = size=3 \{
+    \[0\] = 3
+    \[1\] = 2
+    \[2\] = 1
+  \}
+\}"""
             ],
         )
         self.expect_expr("a.size()", result_type=size_type, result_value="2")