Correct error

src/lpython/semantics/python_ast_to_asr.cpp

@@ -3296,7 +3296,7 @@ class BodyVisitor : public CommonVisitor<BodyVisitor> {
                                     "End is expected to be of string type",
                                     diag::Level::Error, diag::Stage::Semantic, {
                                         diag::Label("Expected string, found: " + found,
-                                                {separator->base.loc})
+                                                {end->base.loc})
                                     })
                                 );
                                 throw SemanticAbort();

tests/reference/asr-test_print2-64acb15.json

@@ -8,6 +8,6 @@
     "stdout": null,
     "stdout_hash": null,
     "stderr": "asr-test_print2-64acb15.stderr",
-    "stderr_hash": "08d27f3224fd46c2f1e6355f8d13b55c1b219aa382c53058a4d0d28c",
-    "returncode": 1
+    "stderr_hash": "e92bba85b957e7034c5172981b3b27ed7b3f0ac62167d82175890bc9",
+    "returncode": 2
 }

tests/reference/asr-test_print2-64acb15.stderr

@@ -1,29 +1,5 @@
-Traceback (most recent call last):
-  File "$DIR/src/bin/lpython.cpp", line 811
-    return emit_asr(arg_file, lpython_pass_manager, runtime_library_dir,
-  File "$DIR/src/bin/lpython.cpp", line 154
-    r = LFortran::LPython::python_ast_to_asr(al, *ast, diagnostics, true,
-  File "$DIR/src/lpython/semantics/python_ast_to_asr.cpp", line 3792
-    if (res2.ok) {
-  File "$DIR/src/lpython/semantics/python_ast_to_asr.cpp", line 3717
-    b.visit_Module(ast);
-  File "$DIR/src/lpython/semantics/python_ast_to_asr.cpp", line 2353
-    visit_stmt(*x.m_body[i]);
-  File "$DIR/src/lpython/python_ast.h", line 1882
-    void visit_stmt(const stmt_t &b) { visit_stmt_t(b, self()); }
-  File "$DIR/src/lpython/python_ast.h", line 1750
-    case stmtType::FunctionDef: { v.visit_FunctionDef((const FunctionDef_t &)x); return; }
-  File "$DIR/src/lpython/semantics/python_ast_to_asr.cpp", line 2381
-    } else if (ASR::is_a<ASR::Function_t>(*t)) {
-  File "$DIR/src/lpython/semantics/python_ast_to_asr.cpp", line 2371
-    transform_stmts(body, x.n_body, x.m_body);
-  File "$DIR/src/lpython/semantics/python_ast_to_asr.cpp", line 2328
-    this->visit_stmt(*m_body[i]);
-  File "$DIR/src/lpython/python_ast.h", line 1882
-    void visit_stmt(const stmt_t &b) { visit_stmt_t(b, self()); }
-  File "$DIR/src/lpython/python_ast.h", line 1772
-    case stmtType::Expr: { v.visit_Expr((const Expr_t &)x); return; }
-  File "$DIR/src/lpython/semantics/python_ast_to_asr.cpp", line 3299
-    {separator->base.loc})
-  Binary file "/usr/lib/system/libsystem_platform.dylib", local address: 0x7fff5013cf59
-Segfault: Signal SIGSEGV (segmentation fault) received
+semantic error: End is expected to be of string type
+ --> tests/errors/test_print2.py:2:26
+  |
+2 |      print("a", "b", end=1)
+  |                          ^ Expected string, found: integer