Some minor improvements to the Error class.

- Rename "Error" to "ErrorInfo", to make clear that this class conveys
information about errors, including that there might not actually be
one.
- Rename "ErrorData" to "ErrorItem", to make clear that these are parts
of an aggregate structure.
- Introduce ErrorInfo::hasError() for quick checking of whether an error
occurred.

Change-Id: Icea6ed5240d6d14bd30e9cea189c6babd7004792
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/buildgraph/automoc.cpp b/src/lib/buildgraph/automoc.cpp
index 1ff61c993..b81444a55 100644
--- a/src/lib/buildgraph/automoc.cpp
+++ b/src/lib/buildgraph/automoc.cpp
@@ -82,7 +82,7 @@ void AutoMoc::setScanResultCache(ScanResultCache *scanResultCache)
 void AutoMoc::apply(const ResolvedProductPtr &product)
 {
     if (scanners().isEmpty())
-        throw Error("C++ scanner cannot be loaded.");
+        throw ErrorInfo("C++ scanner cannot be loaded.");
 
     Artifact *pluginMetaDataFile = 0;
     Artifact *pchFile = 0;