[flang] Rename to Fortran.h, update style guide, run clang-format

Original-commit: flang-compiler/f18@aa2907d2260c34085360917e7fab43d8ee79b6e4
Reviewed-on: https://github.com/flang-compiler/f18/pull/308
Tree-same-pre-rewrite: false
diff --git a/flang/lib/evaluate/characteristics.h b/flang/lib/evaluate/characteristics.h
index 0f309d89..846617a 100644
--- a/flang/lib/evaluate/characteristics.h
+++ b/flang/lib/evaluate/characteristics.h
@@ -21,8 +21,8 @@
 
 #include "expression.h"
 #include "type.h"
+#include "../common/Fortran.h"
 #include "../common/enum-set.h"
-#include "../common/fortran.h"
 #include "../common/idioms.h"
 #include "../common/indirection.h"
 #include <memory>
diff --git a/flang/lib/evaluate/common.h b/flang/lib/evaluate/common.h
index bd42d17..3587869 100644
--- a/flang/lib/evaluate/common.h
+++ b/flang/lib/evaluate/common.h
@@ -15,8 +15,8 @@
 #ifndef FORTRAN_EVALUATE_COMMON_H_
 #define FORTRAN_EVALUATE_COMMON_H_
 
+#include "../common/Fortran.h"
 #include "../common/enum-set.h"
-#include "../common/fortran.h"
 #include "../common/idioms.h"
 #include "../common/indirection.h"
 #include "../common/restorer.h"
diff --git a/flang/lib/evaluate/expression.h b/flang/lib/evaluate/expression.h
index 26316ef..235fde2 100644
--- a/flang/lib/evaluate/expression.h
+++ b/flang/lib/evaluate/expression.h
@@ -26,7 +26,7 @@
 #include "constant.h"
 #include "type.h"
 #include "variable.h"
-#include "../lib/common/fortran.h"
+#include "../lib/common/Fortran.h"
 #include "../lib/common/idioms.h"
 #include "../lib/common/template.h"
 #include "../lib/parser/char-block.h"
diff --git a/flang/lib/evaluate/intrinsics.cc b/flang/lib/evaluate/intrinsics.cc
index 7d7351e..14de420 100644
--- a/flang/lib/evaluate/intrinsics.cc
+++ b/flang/lib/evaluate/intrinsics.cc
@@ -17,8 +17,8 @@
 #include "fold.h"
 #include "tools.h"
 #include "type.h"
+#include "../common/Fortran.h"
 #include "../common/enum-set.h"
-#include "../common/fortran.h"
 #include "../common/idioms.h"
 #include <algorithm>
 #include <map>
diff --git a/flang/lib/evaluate/type.h b/flang/lib/evaluate/type.h
index f9dbb5b..fa83538 100644
--- a/flang/lib/evaluate/type.h
+++ b/flang/lib/evaluate/type.h
@@ -27,7 +27,7 @@
 #include "integer.h"
 #include "logical.h"
 #include "real.h"
-#include "../common/fortran.h"
+#include "../common/Fortran.h"
 #include "../common/idioms.h"
 #include "../common/template.h"
 #include <cinttypes>