core: fix variable rename

jadx-core/src/main/java/jadx/core/codegen/MethodGen.java

@@ -200,7 +200,7 @@ public class MethodGen {
 			return name;
 		}
 		name = getUniqVarName(name);
-		arg.getSVar().setName(name);
+		arg.getSVar().setVariableName(name);
 		return name;
 	}
 

jadx-core/src/main/java/jadx/core/dex/instructions/args/SSAVar.java

@@ -107,6 +107,23 @@ public class SSAVar {
 		}
 	}
 
+	public void setVariableName(String name) {
+		setName(name);
+		if (isUsedInPhi()) {
+			PhiInsn phi = getUsedInPhi();
+			phi.getResult().getSVar().setVariableName(name);
+			for (InsnArg arg : phi.getArguments()) {
+				if (arg.isRegister()) {
+					RegisterArg reg = (RegisterArg) arg;
+					SSAVar sVar = reg.getSVar();
+					if (sVar != this && !name.equals(reg.getName())) {
+						sVar.setVariableName(name);
+					}
+				}
+			}
+		}
+	}
+
 	public void mergeName(RegisterArg arg) {
 		if (arg.getName() != null) {
 			setName(arg.getName());

jadx-core/src/test/java/jadx/tests/internal/inline/TestInline2.java

@@ -11,7 +11,7 @@ import static org.junit.Assert.assertThat;
 public class TestInline2 extends InternalJadxTest {
 
 	public static class TestCls {
-		public int simple_loops() throws InterruptedException {
+		public int test() throws InterruptedException {
 			int[] a = new int[]{1, 2, 4, 6, 8};
 			int b = 0;
 			for (int i = 0; i < a.length; i++) {
@@ -28,7 +28,11 @@ public class TestInline2 extends InternalJadxTest {
 	public void test() {
 		ClassNode cls = getClassNode(TestCls.class);
 		String code = cls.getCode().toString();
+		System.out.println(code);
 
 		assertThat(code, containsString("i < a.length"));
+		assertThat(code, containsString("long i_2 ="));
+		assertThat(code, containsString("+ i_2"));
+		assertThat(code, containsString("i_2--;"));
 	}
 }