[clang-tidy] readability-misleading-indentation: fix chained if

Summary:
Fixed erroneously flagging of chained if statements when styled like this:

```
if (cond) {
}
else if (cond) {
}
else {
}
```

Reviewers: xazax.hun, alexfh

Reviewed By: xazax.hun, alexfh

Subscribers: JDevlieghere, cfe-commits

Patch by Florian Gross!

Differential Revision: https://reviews.llvm.org/D30841

llvm-svn: 298059

1 files changed, 26 insertions, 0 deletions

diff --git a/clang-tools-extra/test/clang-tidy/readability-misleading-indentation.cpp b/clang-tools-extra/test/clang-tidy/readability-misleading-indentation.cpp
index cb81a57f609..ef94229fcb0 100644
--- a/clang-tools-extra/test/clang-tidy/readability-misleading-indentation.cpp
+++ b/clang-tools-extra/test/clang-tidy/readability-misleading-indentation.cpp
@@ -76,5 +76,31 @@ int main()
     {
     }
 
+  if(cond1) {
+  }
+  else if (cond2) {
+  }
+  else {
+  }
+
+  if(cond1) {
+  }
+  else if (cond2) {
+  }
+       else {
+  }
+  // CHECK-MESSAGES: :[[@LINE-2]]:8: warning: different indentation for 'if' and corresponding 'else' [readability-misleading-indentation]
+  
+  if (cond1) {
+    if (cond1) {
+    }
+    else if (cond2) {
+    }
+    else {
+    }
+  }
+  else if (cond2) {
+  }
+
   BLOCK
 }