Cleanup code using forward declarations.

Use misc methods of avoiding unnecesary header includes.
Replace int typedefs with int##_t from stdint.h.
Replace PRI64[xdu] with PRI[xdu]64 from inttypes.h.
Normalize QT_VERSION ifs where possible.
Resolve some indirect dependencies as direct ones.
Remove extern declarations from .cpp files.

src/test/wallet_tests.cpp

@@ -1,8 +1,13 @@
-#include <boost/test/unit_test.hpp>
-
-#include "main.h"
 #include "wallet.h"
 
+#include <set>
+#include <stdint.h>
+#include <utility>
+#include <vector>
+
+#include <boost/foreach.hpp>
+#include <boost/test/unit_test.hpp>
+
 // how many times to run all the tests to have a chance to catch errors that only show up with particular random shuffles
 #define RUN_TESTS 100
 
@@ -19,7 +24,7 @@ BOOST_AUTO_TEST_SUITE(wallet_tests)
 static CWallet wallet;
 static vector<COutput> vCoins;
 
-static void add_coin(int64 nValue, int nAge = 6*24, bool fIsFromMe = false, int nInput=0)
+static void add_coin(int64_t nValue, int nAge = 6*24, bool fIsFromMe = false, int nInput=0)
 {
     static int nextLockTime = 0;
     CTransaction tx;
@@ -55,7 +60,7 @@ static bool equal_sets(CoinSet a, CoinSet b)
 BOOST_AUTO_TEST_CASE(coin_selection_tests)
 {
     CoinSet setCoinsRet, setCoinsRet2;
-    int64 nValueRet;
+    int64_t nValueRet;
 
     // test multiple times to allow for differences in the shuffle order
     for (int i = 0; i < RUN_TESTS; i++)