(Updates with quotes, details) MADRID, Feb 8 (Reuters) - Spain’s government aims to outline in the coming weeks a set of measures to bolster corporate solvency, possibly including haircuts on state-backed loans as well as direct state aid to help smaller firms weather the COVID-19 pandemic, sources said. “We have to build a bridge to sustain the economy until the vaccination plan is completed and the arrival of the European funds,” said a government source present at the discussions. Treasury head Pablo de Ramón-Laca also told state broadcaster RTVE on Monday the state was working on transforming part of the state-backed credit, known as ICO loans, extended so far into an as yet unspecified type of solvency support.