MAINT-5232: LLGlobalEconomy is now an LLSingleton.

It used to contain an LLSingleton called Singleton, requiring
LLGlobalEconomy::Singleton::instance() to access it rather than the
conventional LLGlobalEconomy::instance(). This has been fixed, so normalize
references accordingly.

indra/newview/llpanelsnapshotinventory.cpp

@@ -104,7 +104,7 @@ void LLPanelSnapshotInventory::onResolutionCommit(LLUICtrl* ctrl)
 
 void LLPanelSnapshotInventory::onSend()
 {
-    S32 expected_upload_cost = LLGlobalEconomy::Singleton::getInstance()->getPriceUpload();
+    S32 expected_upload_cost = LLGlobalEconomy::getInstance()->getPriceUpload();
     if (can_afford_transaction(expected_upload_cost))
     {
         LLFloaterSnapshot::saveTexture();

indra/newview/llviewerassetupload.cpp

@@ -174,7 +174,7 @@ S32 LLResourceUploadInfo::getEconomyUploadCost()
         getAssetType() == LLAssetType::AT_ANIMATION ||
         getAssetType() == LLAssetType::AT_MESH)
     {
-        return LLGlobalEconomy::Singleton::instance().getPriceUpload();
+        return LLGlobalEconomy::instance().getPriceUpload();
     }
 
     return 0;

indra/newview/llviewermenufile.cpp

@@ -83,7 +83,7 @@ class LLFileEnableUpload : public view_listener_t
 	bool handleEvent(const LLSD& userdata)
 	{
         return true;
-// 		bool new_value = gStatusBar && LLGlobalEconomy::Singleton::getInstance() && (gStatusBar->getBalance() >= LLGlobalEconomy::Singleton::getInstance()->getPriceUpload());
+// 		bool new_value = gStatusBar && LLGlobalEconomy::getInstance() && (gStatusBar->getBalance() >= LLGlobalEconomy::getInstance()->getPriceUpload());
 // 		return new_value;
 	}
 };
@@ -422,7 +422,7 @@ class LLFileUploadBulk : public view_listener_t
 		if (picker.getMultipleOpenFiles())
 		{
             std::string filename = picker.getFirstFile();
-            S32 expected_upload_cost = LLGlobalEconomy::Singleton::getInstance()->getPriceUpload();
+            S32 expected_upload_cost = LLGlobalEconomy::getInstance()->getPriceUpload();
 
             while (!filename.empty())
             {