[MLIR][Transform] expose transform.debug extension in Python (#145550)

Removes the Debug... prefix on the ops in tablegen, in line with pretty
much all other Transform-dialect extension ops. This means that the ops
in Python look like
`debug.EmitParamAsRemarkOp`/`debug.emit_param_as_remark` instead of
`debug.DebugEmitParamAsRemarkOp`/`debug.debug_emit_param_as_remark`.

mlir/test/python/dialects/transform_debug_ext.py

@@ -0,0 +1,45 @@
+# RUN: %PYTHON %s | FileCheck %s
+
+from mlir.ir import *
+from mlir.dialects import transform
+from mlir.dialects.transform import debug
+
+
+def run(f):
+    print("\nTEST:", f.__name__)
+    with Context(), Location.unknown():
+        module = Module.create()
+        with InsertionPoint(module.body):
+            sequence = transform.SequenceOp(
+                transform.FailurePropagationMode.Propagate,
+                [],
+                transform.AnyOpType.get(),
+            )
+            with InsertionPoint(sequence.body):
+                f(sequence.bodyTarget)
+                transform.YieldOp()
+        print(module)
+    return f
+
+
+@run
+def testDebugEmitParamAsRemark(target):
+    i0 = IntegerAttr.get(IntegerType.get_signless(32), 0)
+    i0_param = transform.ParamConstantOp(transform.AnyParamType.get(), i0)
+    debug.emit_param_as_remark(i0_param)
+    debug.emit_param_as_remark(i0_param, anchor=target, message="some text")
+    # CHECK-LABEL: TEST: testDebugEmitParamAsRemark
+    # CHECK: ^{{.*}}(%[[ARG0:.+]]: !transform.any_op):
+    # CHECK: %[[PARAM:.*]] = transform.param.constant
+    # CHECK: transform.debug.emit_param_as_remark %[[PARAM]]
+    # CHECK: transform.debug.emit_param_as_remark %[[PARAM]]
+    # CHECK-SAME: "some text"
+    # CHECK-SAME: at %[[ARG0]]
+
+
+@run
+def testDebugEmitRemarkAtOp(target):
+    debug.emit_remark_at(target, "some text")
+    # CHECK-LABEL: TEST: testDebugEmitRemarkAtOp
+    # CHECK: ^{{.*}}(%[[ARG0:.+]]: !transform.any_op):
+    # CHECK: transform.debug.emit_remark_at %[[ARG0]], "some text"