[mlir][emitc] NFC. Fix op's example in the description

Author: EtoAndruwa

mlir/include/mlir/Dialect/EmitC/IR/EmitC.td

@@ -1327,150 +1327,36 @@ def EmitC_SwitchOp : EmitC_Op<"switch", [RecursiveMemoryEffects,
     Example:
 
     ```mlir
-    // Example for i32:
-    func.func @emitc_switch_i32() {
-      %0 = "emitc.variable"(){value = 1 : i32} : () -> i32
-
-      emitc.switch %0 : i32
-      case 2: {
-        %1 = emitc.call_opaque "func_b" () : () -> i32
-        emitc.yield
-      }
-      case 5: {
-        %2 = emitc.call_opaque "func_a" () : () -> i32
-        emitc.yield
-      }
-      default: {
-        %3 = "emitc.variable"(){value = 42.0 : f32} : () -> f32
-        %4 = "emitc.variable"(){value = 42.0 : f32} : () -> f32
-
-        emitc.call_opaque "func2" (%3) : (f32) -> ()
-        emitc.call_opaque "func3" (%3, %4) { args = [1 : index, 0 : index] } : (f32, f32) -> ()
-        emitc.yield
-      }
-      return
+    // Example:
+    emitc.switch %0 : i32
+    case 2: {
+      %1 = emitc.call_opaque "func_b" () : () -> i32
+      emitc.yield
     }
-
-    // Output for i32:
-    void emitc_switch_i32() {
-      int32_t v1 = 1;
-
-      switch (v1) {
-      case (2): {
-        int32_t v2 = func_b();
-        break;
-      }
-      case (5): {
-        int32_t v3 = func_a();
-        break;
-      }
-      default: {
-        float v4 = 4.200000000e+01f;
-        float v5 = 4.200000000e+01f;
-        func2(v4);
-        func3(v5, v4);
-        break;
-      }
-      return;
+    case 5: {
+      %2 = emitc.call_opaque "func_a" () : () -> i32
+      emitc.yield
     }
-    ...
-    // Example for ui16:
-    func.func @emitc_switch_ui16() {
-      %0 = "emitc.variable"(){value = 1 : ui16} : () -> ui16
-
-      emitc.switch %0 : ui16
-      case 2: {
-        %1 = emitc.call_opaque "func_b" () : () -> i32
-        emitc.yield
-      }
-      case 5: {
-        %2 = emitc.call_opaque "func_a" () : () -> i32
-        emitc.yield
-      }
-      default: {
-        %3 = "emitc.variable"(){value = 42.0 : f32} : () -> f32
-        %4 = "emitc.variable"(){value = 42.0 : f32} : () -> f32
-
-        emitc.call_opaque "func2" (%3) : (f32) -> ()
-        emitc.call_opaque "func3" (%3, %4) { args = [1 : index, 0 : index] } : (f32, f32) -> ()
-        emitc.yield
-      }
-      return
+    default: {
+      %3 = "emitc.variable"(){value = 42.0 : f32} : () -> f32
+      emitc.call_opaque "func2" (%3) : (f32) -> ()
+      emitc.yield
     }
 
-    // Output for ui16:
-    void emitc_switch_ui16() {
-      uint16_t v1 = 1;
-
-      switch (v1) {
-      case (2): {
-        int32_t v2 = func_b();
-        break;
-      }
-      case (5): {
-        int32_t v3 = func_a();
-        break;
-      }
-      default: {
-        float v4 = 4.200000000e+01f;
-        float v5 = 4.200000000e+01f;
-        func2(v4);
-        func3(v5, v4);
-        break;
-      }
-      return;
+    // Output:
+    switch (v1) {
+    case (2): {
+      int32_t v2 = func_b();
+      break;
     }
-    ...
-    // Example for i64 with `-declare-variables-at-top` option: 
-    func.func @emitc_switch_i64() {
-      %0 = "emitc.variable"(){value = 1 : i64} : () -> i64
-
-      emitc.switch %0 : i64
-      case 2: {
-        %1 = emitc.call_opaque "func_b" () : () -> i32
-        emitc.yield
-      }
-      case 5: {
-        %2 = emitc.call_opaque "func_a" () : () -> i32
-        emitc.yield
-      }
-      default: {
-        %3 = "emitc.variable"(){value = 42.0 : f32} : () -> f32
-        %4 = "emitc.variable"(){value = 42.0 : f32} : () -> f32
-
-        emitc.call_opaque "func2" (%3) : (f32) -> ()
-        emitc.call_opaque "func3" (%3, %4) { args = [1 : index, 0 : index] } : (f32, f32) -> ()
-        emitc.yield
-      }
-      return
+    case (5): {
+      int32_t v3 = func_a();
+      break;
     }
-
-    // Output for i64 with `-declare-variables-at-top` option:
-    void emitc_switch_i64() {
-      int64_t v1;
-      float v2;
-      float v3;
-      int32_t v4;
-      int32_t v5;
-      v1 = 1;
-
-      switch (v1) {
-      case (2): {
-        v4 = func_b();
-        break;
-      }
-      case (5): {
-        v5 = func_a();
-        break;
-      }
-      default: {
-        v2 = 4.200000000e+01f;
-        v3 = 4.200000000e+01f;
-        func2(v2);
-        func3(v3, v2);
-        break;
-      }
-      return;
+    default: {
+      float v4 = 4.200000000e+01f;
+      func2(v4);
+      break;
     }
     ```
   }];