Reorder functions in bn_test.

We usually put main at the end. There's now nothing interesting in the
function, so avoid having to declare every test at the top.

Change-Id: Iac469f41f0fb7d1f58d12dfbf651bf0d39f073d0
Reviewed-on: https://boringssl-review.googlesource.com/8712
Reviewed-by: David Benjamin <davidben@google.com>

crypto/bn/bn_test.cc

diff --git a/crypto/bn/bn_test.cc b/crypto/bn/bn_test.cc
index fbcab0b..3405cbd 100644
--- a/crypto/bn/bn_test.cc
+++ b/crypto/bn/bn_test.cc
@@ -90,49 +90,6 @@
 #include "../crypto/test/test_util.h"
 
 
-static bool TestBN2BinPadded(BN_CTX *ctx);
-static bool TestDec2BN(BN_CTX *ctx);
-static bool TestHex2BN(BN_CTX *ctx);
-static bool TestASC2BN(BN_CTX *ctx);
-static bool TestMPI();
-static bool TestRand();
-static bool TestASN1();
-static bool TestNegativeZero(BN_CTX *ctx);
-static bool TestBadModulus(BN_CTX *ctx);
-static bool TestExpModZero();
-static bool TestSmallPrime(BN_CTX *ctx);
-static bool RunTest(FileTest *t, void *arg);
-
-int main(int argc, char *argv[]) {
-  CRYPTO_library_init();
-
-  if (argc != 2) {
-    fprintf(stderr, "%s TEST_FILE\n", argv[0]);
-    return 1;
-  }
-
-  ScopedBN_CTX ctx(BN_CTX_new());
-  if (!ctx) {
-    return 1;
-  }
-
-  if (!TestBN2BinPadded(ctx.get()) ||
-      !TestDec2BN(ctx.get()) ||
-      !TestHex2BN(ctx.get()) ||
-      !TestASC2BN(ctx.get()) ||
-      !TestMPI() ||
-      !TestRand() ||
-      !TestASN1() ||
-      !TestNegativeZero(ctx.get()) ||
-      !TestBadModulus(ctx.get()) ||
-      !TestExpModZero() ||
-      !TestSmallPrime(ctx.get())) {
-    return 1;
-  }
-
-  return FileTestMain(RunTest, ctx.get(), argv[1]);
-}
-
 static int HexToBIGNUM(ScopedBIGNUM *out, const char *in) {
   BIGNUM *raw = NULL;
   int ret = BN_hex2bn(&raw, in);
@@ -1305,3 +1262,33 @@
 
   return true;
 }
+
+int main(int argc, char *argv[]) {
+  CRYPTO_library_init();
+
+  if (argc != 2) {
+    fprintf(stderr, "%s TEST_FILE\n", argv[0]);
+    return 1;
+  }
+
+  ScopedBN_CTX ctx(BN_CTX_new());
+  if (!ctx) {
+    return 1;
+  }
+
+  if (!TestBN2BinPadded(ctx.get()) ||
+      !TestDec2BN(ctx.get()) ||
+      !TestHex2BN(ctx.get()) ||
+      !TestASC2BN(ctx.get()) ||
+      !TestMPI() ||
+      !TestRand() ||
+      !TestASN1() ||
+      !TestNegativeZero(ctx.get()) ||
+      !TestBadModulus(ctx.get()) ||
+      !TestExpModZero() ||
+      !TestSmallPrime(ctx.get())) {
+    return 1;
+  }
+
+  return FileTestMain(RunTest, ctx.get(), argv[1]);
+}