Add a test and register in CMakeLists

Author: Thirumalai-Shaktivel

integration_tests/CMakeLists.txt

@@ -420,4 +420,5 @@ RUN(NAME comp_01 LABELS cpython llvm wasm wasm_x64)
 RUN(NAME bit_operations_i32 LABELS cpython llvm wasm wasm_x64)
 RUN(NAME bit_operations_i64 LABELS cpython llvm wasm)
 
-RUN(NAME test_argv_01    LABELS llvm) # TODO: Test using CPython
+RUN(NAME test_argv_01      LABELS llvm) # TODO: Test using CPython
+RUN(NAME global_syms_01    LABELS cpython)

integration_tests/global_syms_01.py

@@ -0,0 +1,12 @@
+from ltypes import i32
+
+x: list[i32]
+x = [1, 2]
+i: i32
+i = x[0]
+
+def test_global_symbols():
+    assert i == 1
+    assert x[1] == 2
+
+test_global_symbols()